Wildfires fuel air quality alerts across Canada; Summer Mcintosh's new medal record

As wildfires rage across Canada, air quality alerts have been issued for much of the country, as thick smoke settles over several major cities. We look at the flames fuelling the summer health hazard. Plus, Canadian swimming phenom Summer McIntosh bags another gold medal at the world swimming championships in Singapore. How she has set a new Canadian record while inspiring fans back home. Learn more about your ad choices. Visit megaphone.fm/adchoices